intertwingly

Ray Ozzie: one of the most fundamental architectural characteristics of the Internet - its "symmetry" at the IP level - has been progressively degrading.  NATs, firewalls, DNS limitations and politics, etc.  Across a number of protocols, and for good reasons, the core principles of the original Internet are progressively being reproduced at higher and higher levels, e.g. middleware-level or application-level.  IP has become XML packet routing, TCP has become distributed transaction state management, DNS has become identity and namespace management, etc.  And new value is being added: the packet routing can be secure, the state management can be persistent and durable, the namespace management can be trustworthy.